How exercise triggers the fitness DNA

When healthy but inactive people exercise for a matter of minutes, it triggers a rather immediate change to their DNA, which may ultimately make them stronger, a new study has revealed.

The underlying genetic code in human muscle isn`t changed with exercise, but the DNA molecules within those muscles are chemically and structurally altered in very important ways. Those modifications to the DNA at precise locations appear to be early events in the genetic reprogramming of muscle for strength and, ultimately, in the structural and metabolic benefits of exercise.